forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1696 lines
40 KiB
1696 lines
40 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* CTF writing support via babeltrace. |
|
* |
|
* Copyright (C) 2014, Jiri Olsa <[email protected]> |
|
* Copyright (C) 2014, Sebastian Andrzej Siewior <[email protected]> |
|
*/ |
|
|
|
#include <errno.h> |
|
#include <inttypes.h> |
|
#include <linux/compiler.h> |
|
#include <linux/kernel.h> |
|
#include <linux/zalloc.h> |
|
#include <babeltrace/ctf-writer/writer.h> |
|
#include <babeltrace/ctf-writer/clock.h> |
|
#include <babeltrace/ctf-writer/stream.h> |
|
#include <babeltrace/ctf-writer/event.h> |
|
#include <babeltrace/ctf-writer/event-types.h> |
|
#include <babeltrace/ctf-writer/event-fields.h> |
|
#include <babeltrace/ctf-ir/utils.h> |
|
#include <babeltrace/ctf/events.h> |
|
#include <traceevent/event-parse.h> |
|
#include "asm/bug.h" |
|
#include "data-convert.h" |
|
#include "session.h" |
|
#include "debug.h" |
|
#include "tool.h" |
|
#include "evlist.h" |
|
#include "evsel.h" |
|
#include "machine.h" |
|
#include "config.h" |
|
#include <linux/ctype.h> |
|
#include <linux/err.h> |
|
#include <linux/time64.h> |
|
#include "util.h" |
|
#include "clockid.h" |
|
|
|
#define pr_N(n, fmt, ...) \ |
|
eprintf(n, debug_data_convert, fmt, ##__VA_ARGS__) |
|
|
|
#define pr(fmt, ...) pr_N(1, pr_fmt(fmt), ##__VA_ARGS__) |
|
#define pr2(fmt, ...) pr_N(2, pr_fmt(fmt), ##__VA_ARGS__) |
|
|
|
#define pr_time2(t, fmt, ...) pr_time_N(2, debug_data_convert, t, pr_fmt(fmt), ##__VA_ARGS__) |
|
|
|
struct evsel_priv { |
|
struct bt_ctf_event_class *event_class; |
|
}; |
|
|
|
#define MAX_CPUS 4096 |
|
|
|
struct ctf_stream { |
|
struct bt_ctf_stream *stream; |
|
int cpu; |
|
u32 count; |
|
}; |
|
|
|
struct ctf_writer { |
|
/* writer primitives */ |
|
struct bt_ctf_writer *writer; |
|
struct ctf_stream **stream; |
|
int stream_cnt; |
|
struct bt_ctf_stream_class *stream_class; |
|
struct bt_ctf_clock *clock; |
|
|
|
/* data types */ |
|
union { |
|
struct { |
|
struct bt_ctf_field_type *s64; |
|
struct bt_ctf_field_type *u64; |
|
struct bt_ctf_field_type *s32; |
|
struct bt_ctf_field_type *u32; |
|
struct bt_ctf_field_type *string; |
|
struct bt_ctf_field_type *u32_hex; |
|
struct bt_ctf_field_type *u64_hex; |
|
}; |
|
struct bt_ctf_field_type *array[6]; |
|
} data; |
|
struct bt_ctf_event_class *comm_class; |
|
struct bt_ctf_event_class *exit_class; |
|
struct bt_ctf_event_class *fork_class; |
|
struct bt_ctf_event_class *mmap_class; |
|
struct bt_ctf_event_class *mmap2_class; |
|
}; |
|
|
|
struct convert { |
|
struct perf_tool tool; |
|
struct ctf_writer writer; |
|
|
|
u64 events_size; |
|
u64 events_count; |
|
u64 non_sample_count; |
|
|
|
/* Ordered events configured queue size. */ |
|
u64 queue_size; |
|
}; |
|
|
|
static int value_set(struct bt_ctf_field_type *type, |
|
struct bt_ctf_event *event, |
|
const char *name, u64 val) |
|
{ |
|
struct bt_ctf_field *field; |
|
bool sign = bt_ctf_field_type_integer_get_signed(type); |
|
int ret; |
|
|
|
field = bt_ctf_field_create(type); |
|
if (!field) { |
|
pr_err("failed to create a field %s\n", name); |
|
return -1; |
|
} |
|
|
|
if (sign) { |
|
ret = bt_ctf_field_signed_integer_set_value(field, val); |
|
if (ret) { |
|
pr_err("failed to set field value %s\n", name); |
|
goto err; |
|
} |
|
} else { |
|
ret = bt_ctf_field_unsigned_integer_set_value(field, val); |
|
if (ret) { |
|
pr_err("failed to set field value %s\n", name); |
|
goto err; |
|
} |
|
} |
|
|
|
ret = bt_ctf_event_set_payload(event, name, field); |
|
if (ret) { |
|
pr_err("failed to set payload %s\n", name); |
|
goto err; |
|
} |
|
|
|
pr2(" SET [%s = %" PRIu64 "]\n", name, val); |
|
|
|
err: |
|
bt_ctf_field_put(field); |
|
return ret; |
|
} |
|
|
|
#define __FUNC_VALUE_SET(_name, _val_type) \ |
|
static __maybe_unused int value_set_##_name(struct ctf_writer *cw, \ |
|
struct bt_ctf_event *event, \ |
|
const char *name, \ |
|
_val_type val) \ |
|
{ \ |
|
struct bt_ctf_field_type *type = cw->data._name; \ |
|
return value_set(type, event, name, (u64) val); \ |
|
} |
|
|
|
#define FUNC_VALUE_SET(_name) __FUNC_VALUE_SET(_name, _name) |
|
|
|
FUNC_VALUE_SET(s32) |
|
FUNC_VALUE_SET(u32) |
|
FUNC_VALUE_SET(s64) |
|
FUNC_VALUE_SET(u64) |
|
__FUNC_VALUE_SET(u64_hex, u64) |
|
|
|
static int string_set_value(struct bt_ctf_field *field, const char *string); |
|
static __maybe_unused int |
|
value_set_string(struct ctf_writer *cw, struct bt_ctf_event *event, |
|
const char *name, const char *string) |
|
{ |
|
struct bt_ctf_field_type *type = cw->data.string; |
|
struct bt_ctf_field *field; |
|
int ret = 0; |
|
|
|
field = bt_ctf_field_create(type); |
|
if (!field) { |
|
pr_err("failed to create a field %s\n", name); |
|
return -1; |
|
} |
|
|
|
ret = string_set_value(field, string); |
|
if (ret) { |
|
pr_err("failed to set value %s\n", name); |
|
goto err_put_field; |
|
} |
|
|
|
ret = bt_ctf_event_set_payload(event, name, field); |
|
if (ret) |
|
pr_err("failed to set payload %s\n", name); |
|
|
|
err_put_field: |
|
bt_ctf_field_put(field); |
|
return ret; |
|
} |
|
|
|
static struct bt_ctf_field_type* |
|
get_tracepoint_field_type(struct ctf_writer *cw, struct tep_format_field *field) |
|
{ |
|
unsigned long flags = field->flags; |
|
|
|
if (flags & TEP_FIELD_IS_STRING) |
|
return cw->data.string; |
|
|
|
if (!(flags & TEP_FIELD_IS_SIGNED)) { |
|
/* unsigned long are mostly pointers */ |
|
if (flags & TEP_FIELD_IS_LONG || flags & TEP_FIELD_IS_POINTER) |
|
return cw->data.u64_hex; |
|
} |
|
|
|
if (flags & TEP_FIELD_IS_SIGNED) { |
|
if (field->size == 8) |
|
return cw->data.s64; |
|
else |
|
return cw->data.s32; |
|
} |
|
|
|
if (field->size == 8) |
|
return cw->data.u64; |
|
else |
|
return cw->data.u32; |
|
} |
|
|
|
static unsigned long long adjust_signedness(unsigned long long value_int, int size) |
|
{ |
|
unsigned long long value_mask; |
|
|
|
/* |
|
* value_mask = (1 << (size * 8 - 1)) - 1. |
|
* Directly set value_mask for code readers. |
|
*/ |
|
switch (size) { |
|
case 1: |
|
value_mask = 0x7fULL; |
|
break; |
|
case 2: |
|
value_mask = 0x7fffULL; |
|
break; |
|
case 4: |
|
value_mask = 0x7fffffffULL; |
|
break; |
|
case 8: |
|
/* |
|
* For 64 bit value, return it self. There is no need |
|
* to fill high bit. |
|
*/ |
|
/* Fall through */ |
|
default: |
|
/* BUG! */ |
|
return value_int; |
|
} |
|
|
|
/* If it is a positive value, don't adjust. */ |
|
if ((value_int & (~0ULL - value_mask)) == 0) |
|
return value_int; |
|
|
|
/* Fill upper part of value_int with 1 to make it a negative long long. */ |
|
return (value_int & value_mask) | ~value_mask; |
|
} |
|
|
|
static int string_set_value(struct bt_ctf_field *field, const char *string) |
|
{ |
|
char *buffer = NULL; |
|
size_t len = strlen(string), i, p; |
|
int err; |
|
|
|
for (i = p = 0; i < len; i++, p++) { |
|
if (isprint(string[i])) { |
|
if (!buffer) |
|
continue; |
|
buffer[p] = string[i]; |
|
} else { |
|
char numstr[5]; |
|
|
|
snprintf(numstr, sizeof(numstr), "\\x%02x", |
|
(unsigned int)(string[i]) & 0xff); |
|
|
|
if (!buffer) { |
|
buffer = zalloc(i + (len - i) * 4 + 2); |
|
if (!buffer) { |
|
pr_err("failed to set unprintable string '%s'\n", string); |
|
return bt_ctf_field_string_set_value(field, "UNPRINTABLE-STRING"); |
|
} |
|
if (i > 0) |
|
strncpy(buffer, string, i); |
|
} |
|
memcpy(buffer + p, numstr, 4); |
|
p += 3; |
|
} |
|
} |
|
|
|
if (!buffer) |
|
return bt_ctf_field_string_set_value(field, string); |
|
err = bt_ctf_field_string_set_value(field, buffer); |
|
free(buffer); |
|
return err; |
|
} |
|
|
|
static int add_tracepoint_field_value(struct ctf_writer *cw, |
|
struct bt_ctf_event_class *event_class, |
|
struct bt_ctf_event *event, |
|
struct perf_sample *sample, |
|
struct tep_format_field *fmtf) |
|
{ |
|
struct bt_ctf_field_type *type; |
|
struct bt_ctf_field *array_field; |
|
struct bt_ctf_field *field; |
|
const char *name = fmtf->name; |
|
void *data = sample->raw_data; |
|
unsigned long flags = fmtf->flags; |
|
unsigned int n_items; |
|
unsigned int i; |
|
unsigned int offset; |
|
unsigned int len; |
|
int ret; |
|
|
|
name = fmtf->alias; |
|
offset = fmtf->offset; |
|
len = fmtf->size; |
|
if (flags & TEP_FIELD_IS_STRING) |
|
flags &= ~TEP_FIELD_IS_ARRAY; |
|
|
|
if (flags & TEP_FIELD_IS_DYNAMIC) { |
|
unsigned long long tmp_val; |
|
|
|
tmp_val = tep_read_number(fmtf->event->tep, |
|
data + offset, len); |
|
offset = tmp_val; |
|
len = offset >> 16; |
|
offset &= 0xffff; |
|
} |
|
|
|
if (flags & TEP_FIELD_IS_ARRAY) { |
|
|
|
type = bt_ctf_event_class_get_field_by_name( |
|
event_class, name); |
|
array_field = bt_ctf_field_create(type); |
|
bt_ctf_field_type_put(type); |
|
if (!array_field) { |
|
pr_err("Failed to create array type %s\n", name); |
|
return -1; |
|
} |
|
|
|
len = fmtf->size / fmtf->arraylen; |
|
n_items = fmtf->arraylen; |
|
} else { |
|
n_items = 1; |
|
array_field = NULL; |
|
} |
|
|
|
type = get_tracepoint_field_type(cw, fmtf); |
|
|
|
for (i = 0; i < n_items; i++) { |
|
if (flags & TEP_FIELD_IS_ARRAY) |
|
field = bt_ctf_field_array_get_field(array_field, i); |
|
else |
|
field = bt_ctf_field_create(type); |
|
|
|
if (!field) { |
|
pr_err("failed to create a field %s\n", name); |
|
return -1; |
|
} |
|
|
|
if (flags & TEP_FIELD_IS_STRING) |
|
ret = string_set_value(field, data + offset + i * len); |
|
else { |
|
unsigned long long value_int; |
|
|
|
value_int = tep_read_number( |
|
fmtf->event->tep, |
|
data + offset + i * len, len); |
|
|
|
if (!(flags & TEP_FIELD_IS_SIGNED)) |
|
ret = bt_ctf_field_unsigned_integer_set_value( |
|
field, value_int); |
|
else |
|
ret = bt_ctf_field_signed_integer_set_value( |
|
field, adjust_signedness(value_int, len)); |
|
} |
|
|
|
if (ret) { |
|
pr_err("failed to set file value %s\n", name); |
|
goto err_put_field; |
|
} |
|
if (!(flags & TEP_FIELD_IS_ARRAY)) { |
|
ret = bt_ctf_event_set_payload(event, name, field); |
|
if (ret) { |
|
pr_err("failed to set payload %s\n", name); |
|
goto err_put_field; |
|
} |
|
} |
|
bt_ctf_field_put(field); |
|
} |
|
if (flags & TEP_FIELD_IS_ARRAY) { |
|
ret = bt_ctf_event_set_payload(event, name, array_field); |
|
if (ret) { |
|
pr_err("Failed add payload array %s\n", name); |
|
return -1; |
|
} |
|
bt_ctf_field_put(array_field); |
|
} |
|
return 0; |
|
|
|
err_put_field: |
|
bt_ctf_field_put(field); |
|
return -1; |
|
} |
|
|
|
static int add_tracepoint_fields_values(struct ctf_writer *cw, |
|
struct bt_ctf_event_class *event_class, |
|
struct bt_ctf_event *event, |
|
struct tep_format_field *fields, |
|
struct perf_sample *sample) |
|
{ |
|
struct tep_format_field *field; |
|
int ret; |
|
|
|
for (field = fields; field; field = field->next) { |
|
ret = add_tracepoint_field_value(cw, event_class, event, sample, |
|
field); |
|
if (ret) |
|
return -1; |
|
} |
|
return 0; |
|
} |
|
|
|
static int add_tracepoint_values(struct ctf_writer *cw, |
|
struct bt_ctf_event_class *event_class, |
|
struct bt_ctf_event *event, |
|
struct evsel *evsel, |
|
struct perf_sample *sample) |
|
{ |
|
struct tep_format_field *common_fields = evsel->tp_format->format.common_fields; |
|
struct tep_format_field *fields = evsel->tp_format->format.fields; |
|
int ret; |
|
|
|
ret = add_tracepoint_fields_values(cw, event_class, event, |
|
common_fields, sample); |
|
if (!ret) |
|
ret = add_tracepoint_fields_values(cw, event_class, event, |
|
fields, sample); |
|
|
|
return ret; |
|
} |
|
|
|
static int |
|
add_bpf_output_values(struct bt_ctf_event_class *event_class, |
|
struct bt_ctf_event *event, |
|
struct perf_sample *sample) |
|
{ |
|
struct bt_ctf_field_type *len_type, *seq_type; |
|
struct bt_ctf_field *len_field, *seq_field; |
|
unsigned int raw_size = sample->raw_size; |
|
unsigned int nr_elements = raw_size / sizeof(u32); |
|
unsigned int i; |
|
int ret; |
|
|
|
if (nr_elements * sizeof(u32) != raw_size) |
|
pr_warning("Incorrect raw_size (%u) in bpf output event, skip %zu bytes\n", |
|
raw_size, nr_elements * sizeof(u32) - raw_size); |
|
|
|
len_type = bt_ctf_event_class_get_field_by_name(event_class, "raw_len"); |
|
len_field = bt_ctf_field_create(len_type); |
|
if (!len_field) { |
|
pr_err("failed to create 'raw_len' for bpf output event\n"); |
|
ret = -1; |
|
goto put_len_type; |
|
} |
|
|
|
ret = bt_ctf_field_unsigned_integer_set_value(len_field, nr_elements); |
|
if (ret) { |
|
pr_err("failed to set field value for raw_len\n"); |
|
goto put_len_field; |
|
} |
|
ret = bt_ctf_event_set_payload(event, "raw_len", len_field); |
|
if (ret) { |
|
pr_err("failed to set payload to raw_len\n"); |
|
goto put_len_field; |
|
} |
|
|
|
seq_type = bt_ctf_event_class_get_field_by_name(event_class, "raw_data"); |
|
seq_field = bt_ctf_field_create(seq_type); |
|
if (!seq_field) { |
|
pr_err("failed to create 'raw_data' for bpf output event\n"); |
|
ret = -1; |
|
goto put_seq_type; |
|
} |
|
|
|
ret = bt_ctf_field_sequence_set_length(seq_field, len_field); |
|
if (ret) { |
|
pr_err("failed to set length of 'raw_data'\n"); |
|
goto put_seq_field; |
|
} |
|
|
|
for (i = 0; i < nr_elements; i++) { |
|
struct bt_ctf_field *elem_field = |
|
bt_ctf_field_sequence_get_field(seq_field, i); |
|
|
|
ret = bt_ctf_field_unsigned_integer_set_value(elem_field, |
|
((u32 *)(sample->raw_data))[i]); |
|
|
|
bt_ctf_field_put(elem_field); |
|
if (ret) { |
|
pr_err("failed to set raw_data[%d]\n", i); |
|
goto put_seq_field; |
|
} |
|
} |
|
|
|
ret = bt_ctf_event_set_payload(event, "raw_data", seq_field); |
|
if (ret) |
|
pr_err("failed to set payload for raw_data\n"); |
|
|
|
put_seq_field: |
|
bt_ctf_field_put(seq_field); |
|
put_seq_type: |
|
bt_ctf_field_type_put(seq_type); |
|
put_len_field: |
|
bt_ctf_field_put(len_field); |
|
put_len_type: |
|
bt_ctf_field_type_put(len_type); |
|
return ret; |
|
} |
|
|
|
static int |
|
add_callchain_output_values(struct bt_ctf_event_class *event_class, |
|
struct bt_ctf_event *event, |
|
struct ip_callchain *callchain) |
|
{ |
|
struct bt_ctf_field_type *len_type, *seq_type; |
|
struct bt_ctf_field *len_field, *seq_field; |
|
unsigned int nr_elements = callchain->nr; |
|
unsigned int i; |
|
int ret; |
|
|
|
len_type = bt_ctf_event_class_get_field_by_name( |
|
event_class, "perf_callchain_size"); |
|
len_field = bt_ctf_field_create(len_type); |
|
if (!len_field) { |
|
pr_err("failed to create 'perf_callchain_size' for callchain output event\n"); |
|
ret = -1; |
|
goto put_len_type; |
|
} |
|
|
|
ret = bt_ctf_field_unsigned_integer_set_value(len_field, nr_elements); |
|
if (ret) { |
|
pr_err("failed to set field value for perf_callchain_size\n"); |
|
goto put_len_field; |
|
} |
|
ret = bt_ctf_event_set_payload(event, "perf_callchain_size", len_field); |
|
if (ret) { |
|
pr_err("failed to set payload to perf_callchain_size\n"); |
|
goto put_len_field; |
|
} |
|
|
|
seq_type = bt_ctf_event_class_get_field_by_name( |
|
event_class, "perf_callchain"); |
|
seq_field = bt_ctf_field_create(seq_type); |
|
if (!seq_field) { |
|
pr_err("failed to create 'perf_callchain' for callchain output event\n"); |
|
ret = -1; |
|
goto put_seq_type; |
|
} |
|
|
|
ret = bt_ctf_field_sequence_set_length(seq_field, len_field); |
|
if (ret) { |
|
pr_err("failed to set length of 'perf_callchain'\n"); |
|
goto put_seq_field; |
|
} |
|
|
|
for (i = 0; i < nr_elements; i++) { |
|
struct bt_ctf_field *elem_field = |
|
bt_ctf_field_sequence_get_field(seq_field, i); |
|
|
|
ret = bt_ctf_field_unsigned_integer_set_value(elem_field, |
|
((u64 *)(callchain->ips))[i]); |
|
|
|
bt_ctf_field_put(elem_field); |
|
if (ret) { |
|
pr_err("failed to set callchain[%d]\n", i); |
|
goto put_seq_field; |
|
} |
|
} |
|
|
|
ret = bt_ctf_event_set_payload(event, "perf_callchain", seq_field); |
|
if (ret) |
|
pr_err("failed to set payload for raw_data\n"); |
|
|
|
put_seq_field: |
|
bt_ctf_field_put(seq_field); |
|
put_seq_type: |
|
bt_ctf_field_type_put(seq_type); |
|
put_len_field: |
|
bt_ctf_field_put(len_field); |
|
put_len_type: |
|
bt_ctf_field_type_put(len_type); |
|
return ret; |
|
} |
|
|
|
static int add_generic_values(struct ctf_writer *cw, |
|
struct bt_ctf_event *event, |
|
struct evsel *evsel, |
|
struct perf_sample *sample) |
|
{ |
|
u64 type = evsel->core.attr.sample_type; |
|
int ret; |
|
|
|
/* |
|
* missing: |
|
* PERF_SAMPLE_TIME - not needed as we have it in |
|
* ctf event header |
|
* PERF_SAMPLE_READ - TODO |
|
* PERF_SAMPLE_RAW - tracepoint fields are handled separately |
|
* PERF_SAMPLE_BRANCH_STACK - TODO |
|
* PERF_SAMPLE_REGS_USER - TODO |
|
* PERF_SAMPLE_STACK_USER - TODO |
|
*/ |
|
|
|
if (type & PERF_SAMPLE_IP) { |
|
ret = value_set_u64_hex(cw, event, "perf_ip", sample->ip); |
|
if (ret) |
|
return -1; |
|
} |
|
|
|
if (type & PERF_SAMPLE_TID) { |
|
ret = value_set_s32(cw, event, "perf_tid", sample->tid); |
|
if (ret) |
|
return -1; |
|
|
|
ret = value_set_s32(cw, event, "perf_pid", sample->pid); |
|
if (ret) |
|
return -1; |
|
} |
|
|
|
if ((type & PERF_SAMPLE_ID) || |
|
(type & PERF_SAMPLE_IDENTIFIER)) { |
|
ret = value_set_u64(cw, event, "perf_id", sample->id); |
|
if (ret) |
|
return -1; |
|
} |
|
|
|
if (type & PERF_SAMPLE_STREAM_ID) { |
|
ret = value_set_u64(cw, event, "perf_stream_id", sample->stream_id); |
|
if (ret) |
|
return -1; |
|
} |
|
|
|
if (type & PERF_SAMPLE_PERIOD) { |
|
ret = value_set_u64(cw, event, "perf_period", sample->period); |
|
if (ret) |
|
return -1; |
|
} |
|
|
|
if (type & PERF_SAMPLE_WEIGHT) { |
|
ret = value_set_u64(cw, event, "perf_weight", sample->weight); |
|
if (ret) |
|
return -1; |
|
} |
|
|
|
if (type & PERF_SAMPLE_DATA_SRC) { |
|
ret = value_set_u64(cw, event, "perf_data_src", |
|
sample->data_src); |
|
if (ret) |
|
return -1; |
|
} |
|
|
|
if (type & PERF_SAMPLE_TRANSACTION) { |
|
ret = value_set_u64(cw, event, "perf_transaction", |
|
sample->transaction); |
|
if (ret) |
|
return -1; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int ctf_stream__flush(struct ctf_stream *cs) |
|
{ |
|
int err = 0; |
|
|
|
if (cs) { |
|
err = bt_ctf_stream_flush(cs->stream); |
|
if (err) |
|
pr_err("CTF stream %d flush failed\n", cs->cpu); |
|
|
|
pr("Flush stream for cpu %d (%u samples)\n", |
|
cs->cpu, cs->count); |
|
|
|
cs->count = 0; |
|
} |
|
|
|
return err; |
|
} |
|
|
|
static struct ctf_stream *ctf_stream__create(struct ctf_writer *cw, int cpu) |
|
{ |
|
struct ctf_stream *cs; |
|
struct bt_ctf_field *pkt_ctx = NULL; |
|
struct bt_ctf_field *cpu_field = NULL; |
|
struct bt_ctf_stream *stream = NULL; |
|
int ret; |
|
|
|
cs = zalloc(sizeof(*cs)); |
|
if (!cs) { |
|
pr_err("Failed to allocate ctf stream\n"); |
|
return NULL; |
|
} |
|
|
|
stream = bt_ctf_writer_create_stream(cw->writer, cw->stream_class); |
|
if (!stream) { |
|
pr_err("Failed to create CTF stream\n"); |
|
goto out; |
|
} |
|
|
|
pkt_ctx = bt_ctf_stream_get_packet_context(stream); |
|
if (!pkt_ctx) { |
|
pr_err("Failed to obtain packet context\n"); |
|
goto out; |
|
} |
|
|
|
cpu_field = bt_ctf_field_structure_get_field(pkt_ctx, "cpu_id"); |
|
bt_ctf_field_put(pkt_ctx); |
|
if (!cpu_field) { |
|
pr_err("Failed to obtain cpu field\n"); |
|
goto out; |
|
} |
|
|
|
ret = bt_ctf_field_unsigned_integer_set_value(cpu_field, (u32) cpu); |
|
if (ret) { |
|
pr_err("Failed to update CPU number\n"); |
|
goto out; |
|
} |
|
|
|
bt_ctf_field_put(cpu_field); |
|
|
|
cs->cpu = cpu; |
|
cs->stream = stream; |
|
return cs; |
|
|
|
out: |
|
if (cpu_field) |
|
bt_ctf_field_put(cpu_field); |
|
if (stream) |
|
bt_ctf_stream_put(stream); |
|
|
|
free(cs); |
|
return NULL; |
|
} |
|
|
|
static void ctf_stream__delete(struct ctf_stream *cs) |
|
{ |
|
if (cs) { |
|
bt_ctf_stream_put(cs->stream); |
|
free(cs); |
|
} |
|
} |
|
|
|
static struct ctf_stream *ctf_stream(struct ctf_writer *cw, int cpu) |
|
{ |
|
struct ctf_stream *cs = cw->stream[cpu]; |
|
|
|
if (!cs) { |
|
cs = ctf_stream__create(cw, cpu); |
|
cw->stream[cpu] = cs; |
|
} |
|
|
|
return cs; |
|
} |
|
|
|
static int get_sample_cpu(struct ctf_writer *cw, struct perf_sample *sample, |
|
struct evsel *evsel) |
|
{ |
|
int cpu = 0; |
|
|
|
if (evsel->core.attr.sample_type & PERF_SAMPLE_CPU) |
|
cpu = sample->cpu; |
|
|
|
if (cpu > cw->stream_cnt) { |
|
pr_err("Event was recorded for CPU %d, limit is at %d.\n", |
|
cpu, cw->stream_cnt); |
|
cpu = 0; |
|
} |
|
|
|
return cpu; |
|
} |
|
|
|
#define STREAM_FLUSH_COUNT 100000 |
|
|
|
/* |
|
* Currently we have no other way to determine the |
|
* time for the stream flush other than keep track |
|
* of the number of events and check it against |
|
* threshold. |
|
*/ |
|
static bool is_flush_needed(struct ctf_stream *cs) |
|
{ |
|
return cs->count >= STREAM_FLUSH_COUNT; |
|
} |
|
|
|
static int process_sample_event(struct perf_tool *tool, |
|
union perf_event *_event, |
|
struct perf_sample *sample, |
|
struct evsel *evsel, |
|
struct machine *machine __maybe_unused) |
|
{ |
|
struct convert *c = container_of(tool, struct convert, tool); |
|
struct evsel_priv *priv = evsel->priv; |
|
struct ctf_writer *cw = &c->writer; |
|
struct ctf_stream *cs; |
|
struct bt_ctf_event_class *event_class; |
|
struct bt_ctf_event *event; |
|
int ret; |
|
unsigned long type = evsel->core.attr.sample_type; |
|
|
|
if (WARN_ONCE(!priv, "Failed to setup all events.\n")) |
|
return 0; |
|
|
|
event_class = priv->event_class; |
|
|
|
/* update stats */ |
|
c->events_count++; |
|
c->events_size += _event->header.size; |
|
|
|
pr_time2(sample->time, "sample %" PRIu64 "\n", c->events_count); |
|
|
|
event = bt_ctf_event_create(event_class); |
|
if (!event) { |
|
pr_err("Failed to create an CTF event\n"); |
|
return -1; |
|
} |
|
|
|
bt_ctf_clock_set_time(cw->clock, sample->time); |
|
|
|
ret = add_generic_values(cw, event, evsel, sample); |
|
if (ret) |
|
return -1; |
|
|
|
if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT) { |
|
ret = add_tracepoint_values(cw, event_class, event, |
|
evsel, sample); |
|
if (ret) |
|
return -1; |
|
} |
|
|
|
if (type & PERF_SAMPLE_CALLCHAIN) { |
|
ret = add_callchain_output_values(event_class, |
|
event, sample->callchain); |
|
if (ret) |
|
return -1; |
|
} |
|
|
|
if (evsel__is_bpf_output(evsel)) { |
|
ret = add_bpf_output_values(event_class, event, sample); |
|
if (ret) |
|
return -1; |
|
} |
|
|
|
cs = ctf_stream(cw, get_sample_cpu(cw, sample, evsel)); |
|
if (cs) { |
|
if (is_flush_needed(cs)) |
|
ctf_stream__flush(cs); |
|
|
|
cs->count++; |
|
bt_ctf_stream_append_event(cs->stream, event); |
|
} |
|
|
|
bt_ctf_event_put(event); |
|
return cs ? 0 : -1; |
|
} |
|
|
|
#define __NON_SAMPLE_SET_FIELD(_name, _type, _field) \ |
|
do { \ |
|
ret = value_set_##_type(cw, event, #_field, _event->_name._field);\ |
|
if (ret) \ |
|
return -1; \ |
|
} while(0) |
|
|
|
#define __FUNC_PROCESS_NON_SAMPLE(_name, body) \ |
|
static int process_##_name##_event(struct perf_tool *tool, \ |
|
union perf_event *_event, \ |
|
struct perf_sample *sample, \ |
|
struct machine *machine) \ |
|
{ \ |
|
struct convert *c = container_of(tool, struct convert, tool);\ |
|
struct ctf_writer *cw = &c->writer; \ |
|
struct bt_ctf_event_class *event_class = cw->_name##_class;\ |
|
struct bt_ctf_event *event; \ |
|
struct ctf_stream *cs; \ |
|
int ret; \ |
|
\ |
|
c->non_sample_count++; \ |
|
c->events_size += _event->header.size; \ |
|
event = bt_ctf_event_create(event_class); \ |
|
if (!event) { \ |
|
pr_err("Failed to create an CTF event\n"); \ |
|
return -1; \ |
|
} \ |
|
\ |
|
bt_ctf_clock_set_time(cw->clock, sample->time); \ |
|
body \ |
|
cs = ctf_stream(cw, 0); \ |
|
if (cs) { \ |
|
if (is_flush_needed(cs)) \ |
|
ctf_stream__flush(cs); \ |
|
\ |
|
cs->count++; \ |
|
bt_ctf_stream_append_event(cs->stream, event); \ |
|
} \ |
|
bt_ctf_event_put(event); \ |
|
\ |
|
return perf_event__process_##_name(tool, _event, sample, machine);\ |
|
} |
|
|
|
__FUNC_PROCESS_NON_SAMPLE(comm, |
|
__NON_SAMPLE_SET_FIELD(comm, u32, pid); |
|
__NON_SAMPLE_SET_FIELD(comm, u32, tid); |
|
__NON_SAMPLE_SET_FIELD(comm, string, comm); |
|
) |
|
__FUNC_PROCESS_NON_SAMPLE(fork, |
|
__NON_SAMPLE_SET_FIELD(fork, u32, pid); |
|
__NON_SAMPLE_SET_FIELD(fork, u32, ppid); |
|
__NON_SAMPLE_SET_FIELD(fork, u32, tid); |
|
__NON_SAMPLE_SET_FIELD(fork, u32, ptid); |
|
__NON_SAMPLE_SET_FIELD(fork, u64, time); |
|
) |
|
|
|
__FUNC_PROCESS_NON_SAMPLE(exit, |
|
__NON_SAMPLE_SET_FIELD(fork, u32, pid); |
|
__NON_SAMPLE_SET_FIELD(fork, u32, ppid); |
|
__NON_SAMPLE_SET_FIELD(fork, u32, tid); |
|
__NON_SAMPLE_SET_FIELD(fork, u32, ptid); |
|
__NON_SAMPLE_SET_FIELD(fork, u64, time); |
|
) |
|
__FUNC_PROCESS_NON_SAMPLE(mmap, |
|
__NON_SAMPLE_SET_FIELD(mmap, u32, pid); |
|
__NON_SAMPLE_SET_FIELD(mmap, u32, tid); |
|
__NON_SAMPLE_SET_FIELD(mmap, u64_hex, start); |
|
__NON_SAMPLE_SET_FIELD(mmap, string, filename); |
|
) |
|
__FUNC_PROCESS_NON_SAMPLE(mmap2, |
|
__NON_SAMPLE_SET_FIELD(mmap2, u32, pid); |
|
__NON_SAMPLE_SET_FIELD(mmap2, u32, tid); |
|
__NON_SAMPLE_SET_FIELD(mmap2, u64_hex, start); |
|
__NON_SAMPLE_SET_FIELD(mmap2, string, filename); |
|
) |
|
#undef __NON_SAMPLE_SET_FIELD |
|
#undef __FUNC_PROCESS_NON_SAMPLE |
|
|
|
/* If dup < 0, add a prefix. Else, add _dupl_X suffix. */ |
|
static char *change_name(char *name, char *orig_name, int dup) |
|
{ |
|
char *new_name = NULL; |
|
size_t len; |
|
|
|
if (!name) |
|
name = orig_name; |
|
|
|
if (dup >= 10) |
|
goto out; |
|
/* |
|
* Add '_' prefix to potential keywork. According to |
|
* Mathieu Desnoyers (https://lore.kernel.org/lkml/[email protected]), |
|
* further CTF spec updating may require us to use '$'. |
|
*/ |
|
if (dup < 0) |
|
len = strlen(name) + sizeof("_"); |
|
else |
|
len = strlen(orig_name) + sizeof("_dupl_X"); |
|
|
|
new_name = malloc(len); |
|
if (!new_name) |
|
goto out; |
|
|
|
if (dup < 0) |
|
snprintf(new_name, len, "_%s", name); |
|
else |
|
snprintf(new_name, len, "%s_dupl_%d", orig_name, dup); |
|
|
|
out: |
|
if (name != orig_name) |
|
free(name); |
|
return new_name; |
|
} |
|
|
|
static int event_class_add_field(struct bt_ctf_event_class *event_class, |
|
struct bt_ctf_field_type *type, |
|
struct tep_format_field *field) |
|
{ |
|
struct bt_ctf_field_type *t = NULL; |
|
char *name; |
|
int dup = 1; |
|
int ret; |
|
|
|
/* alias was already assigned */ |
|
if (field->alias != field->name) |
|
return bt_ctf_event_class_add_field(event_class, type, |
|
(char *)field->alias); |
|
|
|
name = field->name; |
|
|
|
/* If 'name' is a keywork, add prefix. */ |
|
if (bt_ctf_validate_identifier(name)) |
|
name = change_name(name, field->name, -1); |
|
|
|
if (!name) { |
|
pr_err("Failed to fix invalid identifier."); |
|
return -1; |
|
} |
|
while ((t = bt_ctf_event_class_get_field_by_name(event_class, name))) { |
|
bt_ctf_field_type_put(t); |
|
name = change_name(name, field->name, dup++); |
|
if (!name) { |
|
pr_err("Failed to create dup name for '%s'\n", field->name); |
|
return -1; |
|
} |
|
} |
|
|
|
ret = bt_ctf_event_class_add_field(event_class, type, name); |
|
if (!ret) |
|
field->alias = name; |
|
|
|
return ret; |
|
} |
|
|
|
static int add_tracepoint_fields_types(struct ctf_writer *cw, |
|
struct tep_format_field *fields, |
|
struct bt_ctf_event_class *event_class) |
|
{ |
|
struct tep_format_field *field; |
|
int ret; |
|
|
|
for (field = fields; field; field = field->next) { |
|
struct bt_ctf_field_type *type; |
|
unsigned long flags = field->flags; |
|
|
|
pr2(" field '%s'\n", field->name); |
|
|
|
type = get_tracepoint_field_type(cw, field); |
|
if (!type) |
|
return -1; |
|
|
|
/* |
|
* A string is an array of chars. For this we use the string |
|
* type and don't care that it is an array. What we don't |
|
* support is an array of strings. |
|
*/ |
|
if (flags & TEP_FIELD_IS_STRING) |
|
flags &= ~TEP_FIELD_IS_ARRAY; |
|
|
|
if (flags & TEP_FIELD_IS_ARRAY) |
|
type = bt_ctf_field_type_array_create(type, field->arraylen); |
|
|
|
ret = event_class_add_field(event_class, type, field); |
|
|
|
if (flags & TEP_FIELD_IS_ARRAY) |
|
bt_ctf_field_type_put(type); |
|
|
|
if (ret) { |
|
pr_err("Failed to add field '%s': %d\n", |
|
field->name, ret); |
|
return -1; |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int add_tracepoint_types(struct ctf_writer *cw, |
|
struct evsel *evsel, |
|
struct bt_ctf_event_class *class) |
|
{ |
|
struct tep_format_field *common_fields = evsel->tp_format->format.common_fields; |
|
struct tep_format_field *fields = evsel->tp_format->format.fields; |
|
int ret; |
|
|
|
ret = add_tracepoint_fields_types(cw, common_fields, class); |
|
if (!ret) |
|
ret = add_tracepoint_fields_types(cw, fields, class); |
|
|
|
return ret; |
|
} |
|
|
|
static int add_bpf_output_types(struct ctf_writer *cw, |
|
struct bt_ctf_event_class *class) |
|
{ |
|
struct bt_ctf_field_type *len_type = cw->data.u32; |
|
struct bt_ctf_field_type *seq_base_type = cw->data.u32_hex; |
|
struct bt_ctf_field_type *seq_type; |
|
int ret; |
|
|
|
ret = bt_ctf_event_class_add_field(class, len_type, "raw_len"); |
|
if (ret) |
|
return ret; |
|
|
|
seq_type = bt_ctf_field_type_sequence_create(seq_base_type, "raw_len"); |
|
if (!seq_type) |
|
return -1; |
|
|
|
return bt_ctf_event_class_add_field(class, seq_type, "raw_data"); |
|
} |
|
|
|
static int add_generic_types(struct ctf_writer *cw, struct evsel *evsel, |
|
struct bt_ctf_event_class *event_class) |
|
{ |
|
u64 type = evsel->core.attr.sample_type; |
|
|
|
/* |
|
* missing: |
|
* PERF_SAMPLE_TIME - not needed as we have it in |
|
* ctf event header |
|
* PERF_SAMPLE_READ - TODO |
|
* PERF_SAMPLE_CALLCHAIN - TODO |
|
* PERF_SAMPLE_RAW - tracepoint fields and BPF output |
|
* are handled separately |
|
* PERF_SAMPLE_BRANCH_STACK - TODO |
|
* PERF_SAMPLE_REGS_USER - TODO |
|
* PERF_SAMPLE_STACK_USER - TODO |
|
*/ |
|
|
|
#define ADD_FIELD(cl, t, n) \ |
|
do { \ |
|
pr2(" field '%s'\n", n); \ |
|
if (bt_ctf_event_class_add_field(cl, t, n)) { \ |
|
pr_err("Failed to add field '%s';\n", n); \ |
|
return -1; \ |
|
} \ |
|
} while (0) |
|
|
|
if (type & PERF_SAMPLE_IP) |
|
ADD_FIELD(event_class, cw->data.u64_hex, "perf_ip"); |
|
|
|
if (type & PERF_SAMPLE_TID) { |
|
ADD_FIELD(event_class, cw->data.s32, "perf_tid"); |
|
ADD_FIELD(event_class, cw->data.s32, "perf_pid"); |
|
} |
|
|
|
if ((type & PERF_SAMPLE_ID) || |
|
(type & PERF_SAMPLE_IDENTIFIER)) |
|
ADD_FIELD(event_class, cw->data.u64, "perf_id"); |
|
|
|
if (type & PERF_SAMPLE_STREAM_ID) |
|
ADD_FIELD(event_class, cw->data.u64, "perf_stream_id"); |
|
|
|
if (type & PERF_SAMPLE_PERIOD) |
|
ADD_FIELD(event_class, cw->data.u64, "perf_period"); |
|
|
|
if (type & PERF_SAMPLE_WEIGHT) |
|
ADD_FIELD(event_class, cw->data.u64, "perf_weight"); |
|
|
|
if (type & PERF_SAMPLE_DATA_SRC) |
|
ADD_FIELD(event_class, cw->data.u64, "perf_data_src"); |
|
|
|
if (type & PERF_SAMPLE_TRANSACTION) |
|
ADD_FIELD(event_class, cw->data.u64, "perf_transaction"); |
|
|
|
if (type & PERF_SAMPLE_CALLCHAIN) { |
|
ADD_FIELD(event_class, cw->data.u32, "perf_callchain_size"); |
|
ADD_FIELD(event_class, |
|
bt_ctf_field_type_sequence_create( |
|
cw->data.u64_hex, "perf_callchain_size"), |
|
"perf_callchain"); |
|
} |
|
|
|
#undef ADD_FIELD |
|
return 0; |
|
} |
|
|
|
static int add_event(struct ctf_writer *cw, struct evsel *evsel) |
|
{ |
|
struct bt_ctf_event_class *event_class; |
|
struct evsel_priv *priv; |
|
const char *name = evsel__name(evsel); |
|
int ret; |
|
|
|
pr("Adding event '%s' (type %d)\n", name, evsel->core.attr.type); |
|
|
|
event_class = bt_ctf_event_class_create(name); |
|
if (!event_class) |
|
return -1; |
|
|
|
ret = add_generic_types(cw, evsel, event_class); |
|
if (ret) |
|
goto err; |
|
|
|
if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT) { |
|
ret = add_tracepoint_types(cw, evsel, event_class); |
|
if (ret) |
|
goto err; |
|
} |
|
|
|
if (evsel__is_bpf_output(evsel)) { |
|
ret = add_bpf_output_types(cw, event_class); |
|
if (ret) |
|
goto err; |
|
} |
|
|
|
ret = bt_ctf_stream_class_add_event_class(cw->stream_class, event_class); |
|
if (ret) { |
|
pr("Failed to add event class into stream.\n"); |
|
goto err; |
|
} |
|
|
|
priv = malloc(sizeof(*priv)); |
|
if (!priv) |
|
goto err; |
|
|
|
priv->event_class = event_class; |
|
evsel->priv = priv; |
|
return 0; |
|
|
|
err: |
|
bt_ctf_event_class_put(event_class); |
|
pr_err("Failed to add event '%s'.\n", name); |
|
return -1; |
|
} |
|
|
|
static int setup_events(struct ctf_writer *cw, struct perf_session *session) |
|
{ |
|
struct evlist *evlist = session->evlist; |
|
struct evsel *evsel; |
|
int ret; |
|
|
|
evlist__for_each_entry(evlist, evsel) { |
|
ret = add_event(cw, evsel); |
|
if (ret) |
|
return ret; |
|
} |
|
return 0; |
|
} |
|
|
|
#define __NON_SAMPLE_ADD_FIELD(t, n) \ |
|
do { \ |
|
pr2(" field '%s'\n", #n); \ |
|
if (bt_ctf_event_class_add_field(event_class, cw->data.t, #n)) {\ |
|
pr_err("Failed to add field '%s';\n", #n);\ |
|
return -1; \ |
|
} \ |
|
} while(0) |
|
|
|
#define __FUNC_ADD_NON_SAMPLE_EVENT_CLASS(_name, body) \ |
|
static int add_##_name##_event(struct ctf_writer *cw) \ |
|
{ \ |
|
struct bt_ctf_event_class *event_class; \ |
|
int ret; \ |
|
\ |
|
pr("Adding "#_name" event\n"); \ |
|
event_class = bt_ctf_event_class_create("perf_" #_name);\ |
|
if (!event_class) \ |
|
return -1; \ |
|
body \ |
|
\ |
|
ret = bt_ctf_stream_class_add_event_class(cw->stream_class, event_class);\ |
|
if (ret) { \ |
|
pr("Failed to add event class '"#_name"' into stream.\n");\ |
|
return ret; \ |
|
} \ |
|
\ |
|
cw->_name##_class = event_class; \ |
|
bt_ctf_event_class_put(event_class); \ |
|
return 0; \ |
|
} |
|
|
|
__FUNC_ADD_NON_SAMPLE_EVENT_CLASS(comm, |
|
__NON_SAMPLE_ADD_FIELD(u32, pid); |
|
__NON_SAMPLE_ADD_FIELD(u32, tid); |
|
__NON_SAMPLE_ADD_FIELD(string, comm); |
|
) |
|
|
|
__FUNC_ADD_NON_SAMPLE_EVENT_CLASS(fork, |
|
__NON_SAMPLE_ADD_FIELD(u32, pid); |
|
__NON_SAMPLE_ADD_FIELD(u32, ppid); |
|
__NON_SAMPLE_ADD_FIELD(u32, tid); |
|
__NON_SAMPLE_ADD_FIELD(u32, ptid); |
|
__NON_SAMPLE_ADD_FIELD(u64, time); |
|
) |
|
|
|
__FUNC_ADD_NON_SAMPLE_EVENT_CLASS(exit, |
|
__NON_SAMPLE_ADD_FIELD(u32, pid); |
|
__NON_SAMPLE_ADD_FIELD(u32, ppid); |
|
__NON_SAMPLE_ADD_FIELD(u32, tid); |
|
__NON_SAMPLE_ADD_FIELD(u32, ptid); |
|
__NON_SAMPLE_ADD_FIELD(u64, time); |
|
) |
|
|
|
__FUNC_ADD_NON_SAMPLE_EVENT_CLASS(mmap, |
|
__NON_SAMPLE_ADD_FIELD(u32, pid); |
|
__NON_SAMPLE_ADD_FIELD(u32, tid); |
|
__NON_SAMPLE_ADD_FIELD(u64_hex, start); |
|
__NON_SAMPLE_ADD_FIELD(string, filename); |
|
) |
|
|
|
__FUNC_ADD_NON_SAMPLE_EVENT_CLASS(mmap2, |
|
__NON_SAMPLE_ADD_FIELD(u32, pid); |
|
__NON_SAMPLE_ADD_FIELD(u32, tid); |
|
__NON_SAMPLE_ADD_FIELD(u64_hex, start); |
|
__NON_SAMPLE_ADD_FIELD(string, filename); |
|
) |
|
#undef __NON_SAMPLE_ADD_FIELD |
|
#undef __FUNC_ADD_NON_SAMPLE_EVENT_CLASS |
|
|
|
static int setup_non_sample_events(struct ctf_writer *cw, |
|
struct perf_session *session __maybe_unused) |
|
{ |
|
int ret; |
|
|
|
ret = add_comm_event(cw); |
|
if (ret) |
|
return ret; |
|
ret = add_exit_event(cw); |
|
if (ret) |
|
return ret; |
|
ret = add_fork_event(cw); |
|
if (ret) |
|
return ret; |
|
ret = add_mmap_event(cw); |
|
if (ret) |
|
return ret; |
|
ret = add_mmap2_event(cw); |
|
if (ret) |
|
return ret; |
|
return 0; |
|
} |
|
|
|
static void cleanup_events(struct perf_session *session) |
|
{ |
|
struct evlist *evlist = session->evlist; |
|
struct evsel *evsel; |
|
|
|
evlist__for_each_entry(evlist, evsel) { |
|
struct evsel_priv *priv; |
|
|
|
priv = evsel->priv; |
|
bt_ctf_event_class_put(priv->event_class); |
|
zfree(&evsel->priv); |
|
} |
|
|
|
evlist__delete(evlist); |
|
session->evlist = NULL; |
|
} |
|
|
|
static int setup_streams(struct ctf_writer *cw, struct perf_session *session) |
|
{ |
|
struct ctf_stream **stream; |
|
struct perf_header *ph = &session->header; |
|
int ncpus; |
|
|
|
/* |
|
* Try to get the number of cpus used in the data file, |
|
* if not present fallback to the MAX_CPUS. |
|
*/ |
|
ncpus = ph->env.nr_cpus_avail ?: MAX_CPUS; |
|
|
|
stream = zalloc(sizeof(*stream) * ncpus); |
|
if (!stream) { |
|
pr_err("Failed to allocate streams.\n"); |
|
return -ENOMEM; |
|
} |
|
|
|
cw->stream = stream; |
|
cw->stream_cnt = ncpus; |
|
return 0; |
|
} |
|
|
|
static void free_streams(struct ctf_writer *cw) |
|
{ |
|
int cpu; |
|
|
|
for (cpu = 0; cpu < cw->stream_cnt; cpu++) |
|
ctf_stream__delete(cw->stream[cpu]); |
|
|
|
zfree(&cw->stream); |
|
} |
|
|
|
static int ctf_writer__setup_env(struct ctf_writer *cw, |
|
struct perf_session *session) |
|
{ |
|
struct perf_header *header = &session->header; |
|
struct bt_ctf_writer *writer = cw->writer; |
|
|
|
#define ADD(__n, __v) \ |
|
do { \ |
|
if (bt_ctf_writer_add_environment_field(writer, __n, __v)) \ |
|
return -1; \ |
|
} while (0) |
|
|
|
ADD("host", header->env.hostname); |
|
ADD("sysname", "Linux"); |
|
ADD("release", header->env.os_release); |
|
ADD("version", header->env.version); |
|
ADD("machine", header->env.arch); |
|
ADD("domain", "kernel"); |
|
ADD("tracer_name", "perf"); |
|
|
|
#undef ADD |
|
return 0; |
|
} |
|
|
|
static int ctf_writer__setup_clock(struct ctf_writer *cw, |
|
struct perf_session *session, |
|
bool tod) |
|
{ |
|
struct bt_ctf_clock *clock = cw->clock; |
|
const char *desc = "perf clock"; |
|
int64_t offset = 0; |
|
|
|
if (tod) { |
|
struct perf_env *env = &session->header.env; |
|
|
|
if (!env->clock.enabled) { |
|
pr_err("Can't provide --tod time, missing clock data. " |
|
"Please record with -k/--clockid option.\n"); |
|
return -1; |
|
} |
|
|
|
desc = clockid_name(env->clock.clockid); |
|
offset = env->clock.tod_ns - env->clock.clockid_ns; |
|
} |
|
|
|
#define SET(__n, __v) \ |
|
do { \ |
|
if (bt_ctf_clock_set_##__n(clock, __v)) \ |
|
return -1; \ |
|
} while (0) |
|
|
|
SET(frequency, 1000000000); |
|
SET(offset, offset); |
|
SET(description, desc); |
|
SET(precision, 10); |
|
SET(is_absolute, 0); |
|
|
|
#undef SET |
|
return 0; |
|
} |
|
|
|
static struct bt_ctf_field_type *create_int_type(int size, bool sign, bool hex) |
|
{ |
|
struct bt_ctf_field_type *type; |
|
|
|
type = bt_ctf_field_type_integer_create(size); |
|
if (!type) |
|
return NULL; |
|
|
|
if (sign && |
|
bt_ctf_field_type_integer_set_signed(type, 1)) |
|
goto err; |
|
|
|
if (hex && |
|
bt_ctf_field_type_integer_set_base(type, BT_CTF_INTEGER_BASE_HEXADECIMAL)) |
|
goto err; |
|
|
|
#if __BYTE_ORDER == __BIG_ENDIAN |
|
bt_ctf_field_type_set_byte_order(type, BT_CTF_BYTE_ORDER_BIG_ENDIAN); |
|
#else |
|
bt_ctf_field_type_set_byte_order(type, BT_CTF_BYTE_ORDER_LITTLE_ENDIAN); |
|
#endif |
|
|
|
pr2("Created type: INTEGER %d-bit %ssigned %s\n", |
|
size, sign ? "un" : "", hex ? "hex" : ""); |
|
return type; |
|
|
|
err: |
|
bt_ctf_field_type_put(type); |
|
return NULL; |
|
} |
|
|
|
static void ctf_writer__cleanup_data(struct ctf_writer *cw) |
|
{ |
|
unsigned int i; |
|
|
|
for (i = 0; i < ARRAY_SIZE(cw->data.array); i++) |
|
bt_ctf_field_type_put(cw->data.array[i]); |
|
} |
|
|
|
static int ctf_writer__init_data(struct ctf_writer *cw) |
|
{ |
|
#define CREATE_INT_TYPE(type, size, sign, hex) \ |
|
do { \ |
|
(type) = create_int_type(size, sign, hex); \ |
|
if (!(type)) \ |
|
goto err; \ |
|
} while (0) |
|
|
|
CREATE_INT_TYPE(cw->data.s64, 64, true, false); |
|
CREATE_INT_TYPE(cw->data.u64, 64, false, false); |
|
CREATE_INT_TYPE(cw->data.s32, 32, true, false); |
|
CREATE_INT_TYPE(cw->data.u32, 32, false, false); |
|
CREATE_INT_TYPE(cw->data.u32_hex, 32, false, true); |
|
CREATE_INT_TYPE(cw->data.u64_hex, 64, false, true); |
|
|
|
cw->data.string = bt_ctf_field_type_string_create(); |
|
if (cw->data.string) |
|
return 0; |
|
|
|
err: |
|
ctf_writer__cleanup_data(cw); |
|
pr_err("Failed to create data types.\n"); |
|
return -1; |
|
} |
|
|
|
static void ctf_writer__cleanup(struct ctf_writer *cw) |
|
{ |
|
ctf_writer__cleanup_data(cw); |
|
|
|
bt_ctf_clock_put(cw->clock); |
|
free_streams(cw); |
|
bt_ctf_stream_class_put(cw->stream_class); |
|
bt_ctf_writer_put(cw->writer); |
|
|
|
/* and NULL all the pointers */ |
|
memset(cw, 0, sizeof(*cw)); |
|
} |
|
|
|
static int ctf_writer__init(struct ctf_writer *cw, const char *path, |
|
struct perf_session *session, bool tod) |
|
{ |
|
struct bt_ctf_writer *writer; |
|
struct bt_ctf_stream_class *stream_class; |
|
struct bt_ctf_clock *clock; |
|
struct bt_ctf_field_type *pkt_ctx_type; |
|
int ret; |
|
|
|
/* CTF writer */ |
|
writer = bt_ctf_writer_create(path); |
|
if (!writer) |
|
goto err; |
|
|
|
cw->writer = writer; |
|
|
|
/* CTF clock */ |
|
clock = bt_ctf_clock_create("perf_clock"); |
|
if (!clock) { |
|
pr("Failed to create CTF clock.\n"); |
|
goto err_cleanup; |
|
} |
|
|
|
cw->clock = clock; |
|
|
|
if (ctf_writer__setup_clock(cw, session, tod)) { |
|
pr("Failed to setup CTF clock.\n"); |
|
goto err_cleanup; |
|
} |
|
|
|
/* CTF stream class */ |
|
stream_class = bt_ctf_stream_class_create("perf_stream"); |
|
if (!stream_class) { |
|
pr("Failed to create CTF stream class.\n"); |
|
goto err_cleanup; |
|
} |
|
|
|
cw->stream_class = stream_class; |
|
|
|
/* CTF clock stream setup */ |
|
if (bt_ctf_stream_class_set_clock(stream_class, clock)) { |
|
pr("Failed to assign CTF clock to stream class.\n"); |
|
goto err_cleanup; |
|
} |
|
|
|
if (ctf_writer__init_data(cw)) |
|
goto err_cleanup; |
|
|
|
/* Add cpu_id for packet context */ |
|
pkt_ctx_type = bt_ctf_stream_class_get_packet_context_type(stream_class); |
|
if (!pkt_ctx_type) |
|
goto err_cleanup; |
|
|
|
ret = bt_ctf_field_type_structure_add_field(pkt_ctx_type, cw->data.u32, "cpu_id"); |
|
bt_ctf_field_type_put(pkt_ctx_type); |
|
if (ret) |
|
goto err_cleanup; |
|
|
|
/* CTF clock writer setup */ |
|
if (bt_ctf_writer_add_clock(writer, clock)) { |
|
pr("Failed to assign CTF clock to writer.\n"); |
|
goto err_cleanup; |
|
} |
|
|
|
return 0; |
|
|
|
err_cleanup: |
|
ctf_writer__cleanup(cw); |
|
err: |
|
pr_err("Failed to setup CTF writer.\n"); |
|
return -1; |
|
} |
|
|
|
static int ctf_writer__flush_streams(struct ctf_writer *cw) |
|
{ |
|
int cpu, ret = 0; |
|
|
|
for (cpu = 0; cpu < cw->stream_cnt && !ret; cpu++) |
|
ret = ctf_stream__flush(cw->stream[cpu]); |
|
|
|
return ret; |
|
} |
|
|
|
static int convert__config(const char *var, const char *value, void *cb) |
|
{ |
|
struct convert *c = cb; |
|
|
|
if (!strcmp(var, "convert.queue-size")) |
|
return perf_config_u64(&c->queue_size, var, value); |
|
|
|
return 0; |
|
} |
|
|
|
int bt_convert__perf2ctf(const char *input, const char *path, |
|
struct perf_data_convert_opts *opts) |
|
{ |
|
struct perf_session *session; |
|
struct perf_data data = { |
|
.path = input, |
|
.mode = PERF_DATA_MODE_READ, |
|
.force = opts->force, |
|
}; |
|
struct convert c = { |
|
.tool = { |
|
.sample = process_sample_event, |
|
.mmap = perf_event__process_mmap, |
|
.mmap2 = perf_event__process_mmap2, |
|
.comm = perf_event__process_comm, |
|
.exit = perf_event__process_exit, |
|
.fork = perf_event__process_fork, |
|
.lost = perf_event__process_lost, |
|
.tracing_data = perf_event__process_tracing_data, |
|
.build_id = perf_event__process_build_id, |
|
.namespaces = perf_event__process_namespaces, |
|
.ordered_events = true, |
|
.ordering_requires_timestamps = true, |
|
}, |
|
}; |
|
struct ctf_writer *cw = &c.writer; |
|
int err; |
|
|
|
if (opts->all) { |
|
c.tool.comm = process_comm_event; |
|
c.tool.exit = process_exit_event; |
|
c.tool.fork = process_fork_event; |
|
c.tool.mmap = process_mmap_event; |
|
c.tool.mmap2 = process_mmap2_event; |
|
} |
|
|
|
err = perf_config(convert__config, &c); |
|
if (err) |
|
return err; |
|
|
|
err = -1; |
|
/* perf.data session */ |
|
session = perf_session__new(&data, &c.tool); |
|
if (IS_ERR(session)) |
|
return PTR_ERR(session); |
|
|
|
/* CTF writer */ |
|
if (ctf_writer__init(cw, path, session, opts->tod)) |
|
goto free_session; |
|
|
|
if (c.queue_size) { |
|
ordered_events__set_alloc_size(&session->ordered_events, |
|
c.queue_size); |
|
} |
|
|
|
/* CTF writer env/clock setup */ |
|
if (ctf_writer__setup_env(cw, session)) |
|
goto free_writer; |
|
|
|
/* CTF events setup */ |
|
if (setup_events(cw, session)) |
|
goto free_writer; |
|
|
|
if (opts->all && setup_non_sample_events(cw, session)) |
|
goto free_writer; |
|
|
|
if (setup_streams(cw, session)) |
|
goto free_writer; |
|
|
|
err = perf_session__process_events(session); |
|
if (!err) |
|
err = ctf_writer__flush_streams(cw); |
|
else |
|
pr_err("Error during conversion.\n"); |
|
|
|
fprintf(stderr, |
|
"[ perf data convert: Converted '%s' into CTF data '%s' ]\n", |
|
data.path, path); |
|
|
|
fprintf(stderr, |
|
"[ perf data convert: Converted and wrote %.3f MB (%" PRIu64 " samples", |
|
(double) c.events_size / 1024.0 / 1024.0, |
|
c.events_count); |
|
|
|
if (!c.non_sample_count) |
|
fprintf(stderr, ") ]\n"); |
|
else |
|
fprintf(stderr, ", %" PRIu64 " non-samples) ]\n", c.non_sample_count); |
|
|
|
cleanup_events(session); |
|
perf_session__delete(session); |
|
ctf_writer__cleanup(cw); |
|
|
|
return err; |
|
|
|
free_writer: |
|
ctf_writer__cleanup(cw); |
|
free_session: |
|
perf_session__delete(session); |
|
pr_err("Error during conversion setup.\n"); |
|
return err; |
|
}
|
|
|